Inventor · disambiguated record
Hsien-Tsung Chang
Also filed as: CHANG HSIEN-TSUNG
3 granted patents·1 pending application·135 citations·filing 1999–2004
73Inventor score
Top patents by PatentIndex Score
4 records- 0185US6325632B1Computer-aided learning method and systems matching students with instructorsANABAS INC·Filed 1999·Granted Dec 4, 2001·115 cites·45 claims
- 0264US6974226B2Magnetically attachable light assembly for glassesCONTOUR OPTIK INC·Filed 2003·Granted Dec 13, 2005·16 cites·19 claims
- 0347US7226161B2Eyeglass deviceCONTOUR OPTIK INC·Filed 2004·Granted Jun 5, 2007·4 cites·18 claims
- 0431US2003123023A1Linking device for connecting secondary lens to spectaclesFiled 2002·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Hsien-Tsung Chang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →